[Snyk] Security upgrade io.vertx:vertx-core from 3.8.5 to 4.5.32

[benjaminhuo]

Snyk has created this PR to fix 1 vulnerabilities in the maven dependencies of this project.

Snyk changed the following file(s):

• builders/testdata/java/vertx-helloworld/pom.xml

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score	Upgrade
	Use of Cache Containing Sensitive Information SNYK-JAVA-IONETTY-18956131	701	io.vertx:vertx-core: 3.8.5 -> 4.5.32 Major version upgrade No Known Exploit

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[benjaminhuo]

The upgrade from Vert.x 3.8.5 to 4.5.32 is a major version jump that introduces significant and breaking API changes, requiring a considerable migration effort.

Key Breaking Changes:

• Asynchronous Model (Futures): Vert.x 4 shifts its core asynchronous programming model from callbacks to Futures. [1, 3] While many callback APIs still exist to ease migration, the idiomatic approach is now Future-based. [4] This includes:

  • Future.setHandler() has been removed and replaced by onComplete(), onSuccess(), and onFailure(). [6]
  • Future now directly implements Handler<AsyncResult<T>>, and the completer() method is removed. [6]

• API Removals and Method Signature Changes:

  • EventBus: The send() method for request-response has been removed and must be replaced with request(). [1]
  • WriteStream: The write() and end() methods are no longer fluent (i.e., they do not return the stream instance). They now return void or Future<Void>, which will break any chained calls. [1, 5]
  • MessageProducer: This interface no longer extends WriteStream. [1]
  • Deprecated APIs: Any API marked as deprecated in Vert.x 3.x has been removed in 4.x. [1]

• Component Updates:

  • Authentication: vertx-auth-shiro is deprecated and replaced by new modules like vertx-auth-properties and vertx-auth-ldap. [2, 11]
  • SQL Clients: The upgrade introduces new high-performance reactive SQL clients, which may require rewriting database interaction logic. [2]

Source: Vert.x 3 to 4 Migration Guide

Recommendation: This upgrade cannot be completed without significant code refactoring. Developers must follow the official migration guide to address the changes in the asynchronous model and update calls to removed or modified APIs. A dedicated effort should be planned for this migration.

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

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